Means for reenforcing excavator-bucket teeth



FeB." 2e,I 1924. 1,485,243 E. T. BLAKE Y MEANS FOR'REENFORCING EXCAVATORBUCKET TEETH Filed March 14, 1925 INVENTOR' 'EDLLHN T- BLHKE ATTORNEYPatented F 25, 1%24.

EDWIN T. BLAKE, OF BERKELEY, CALIFORNIA.

MEANS FOR REENFORCING EXCAVATOR-BUCKET .TEETE.

Application filled March 14, 1923. Serial No. 625,083.

- To all whom it may concern:

Be it known that I, EDWIN -T. BLAKE, a citizen of the United States,-residing at Berkele in the county of Alameda and State oi alifornia,have invented'new and useful Improvements in Means for ReenforcinExcavator-Bucket Teeth, of which the 0 owing is a s cification.

- This invention re ates to means for reenforcing excavator bucket teethand has for its primary object the provision of manganese stee 'webswhich are disposed on the teeth adjacent the cutting points thereof.

A further object is to provide reenforcl5 ing means which will prevent awearing of the tooth per se and the edge of the bucket land at the sametime prevent distorting of the point;

A still further object is to provide meanswhereby the wedging of stonesbetween the teeth will be prevented.

Other objects and advantages will be apparent during the course of thefollowing descri tion.

In t e accompanying drawings forming a part of this specification, andin which like numerals are employed to designate like parts throughoutthe same,

Figure 1, is a perspective'view of a tooth constructed in accordancewith my invention and showing a removable point in dotted lines,

Figure 2 is a fragmentary top plan view of a bucket showing two teethsecured thereto.

Applicant is aware of the fact that wearing points have been providedfor bucket teeth. These wearing points, however, merely protected thetooth itseh and. often caused stones to become jammed between the teeth,which stones are hard to remove.

Applicant has overcome these objections by applying his novel means forreenforcing the teeth and disposing means upon each side of the tooth,which extend forwardly therefrom and contact the sides of the ordinaryremovable point, the adjacent flanges or flared portions of the twoteeth lying relatively close together thereby preventing the wedgingofstones between the teeth and at the same time protecting the diggingedge of the bucket against undue wear.

In the accompanying drawings wherein for the purpose of illustration isshown a 'preferredembodiment of my invention, the

numeral 5 designates a portion of the bottom of a bucket'having teethdesi ated as a whole b the numerals 6 and secured thereto; y referringto Figure 1, it will be noted that this tooth is provided with anelongated portion 8 which overlies the bottom of the bucket, while 'aportion 9 underlies the bottom of the bucket, orvice versa.

These portions 8 and 9 are spaced from each other to accommodate thethickness of the bucket bottom and are joined together by a pointed tipportion 11.

A longitudinal channel 12 extends the length of the tooth and alsodivides the point of the tooth. 1

At 13 I have shown a point preferabl formed of a wear resistingmaterial, suc as manganese steel which point is adapted to be bolted orriveted to one of the teeth as for instance the tooth 7. This point ispro vided with a rearwardly extending lu 1i hich adapted to receive abolt or rivet 16 w passes through a suitable. opening in the tooth 7.

A similar rivet or bolt as shown in dotted lines at 17 passes betweenthe tip 11 and serves to prevent side motion of the point: At18 and 19 Ihave shown flared portions formed integral with the tips 11 andextending forwardly to a point adjacent the centers of the ti By viewingFigure 1, it will be noted'that these flared portions about the side ofthe point 13 which" also assist in preventing movement of the point withrespect to the tooth;

These flared portions of each respective tooth is adapted to lie inclose proxiniity to each other as best shown in Figure 2. This serves toprevent stones of any size wed ing themselves between the teeth and at ta same time prevents the digging edge 19 of the bucket 5 from cominginto direct digging contact with the earth thereby saving ed to withoutdeparting from the s hit of said point and on a plane parallel to the 39f.

the invention or the scope of thesuiijoined length of the'tooth, saidflared portions be.

claim. 111g curved from the front toward the rear,

Having thus described my invention, I and ada tedto contact the sides ofsaid ciaim: point, so stantiaiiy as and for the purpose In a device ofthe character described the specified.

combination of a bucket tooth having a re Iii-testimony whereof I afiixmy signamovable point adapted to be attached to said 111 8.

tooth, flared portions formed integral with EDWINT. BLAKE.

